Window burglar-guard



IN VE/V T08 A N R/VH8.

Patented Jan. 15, 1889.

J; B. HARRIS.

WINDOW BURGLAR GUARD.

Eigi.

-4 Hill:

(No Model.)

u I l I I I l It UNITED STATES PATENT Genres.

JOHN B. HARRIS, OF EUTAlV, ALABAMA.

WINDOW BURGLAR-GUARD.

SPECIFICATION forming part of Letters Patent No. 396,157, dated January15, 1889.

Application filed November 20, 1888. Serial No. 291,386. (No model.)

To all whom it may concern.-

Be it known that 1, JOHN B. HARRIS, of

Eutaw, in the county of Greene and State of Alabama, have invented a newand Improved lVindow Burglar-Guard, of which the following is a full,clear, and exact description.

This invention has for its object to provide a device which will preventa person from surreptitiously gaining access to a building through awindow, and by means of which a person attempting to unlawfully enter abuilding through a window will be caught and held a prisoner.

The invention consists in a device for the above purpose constructed andarranged as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar figures of reference indicatecorresponding parts in all the figures.

Figure 1 is a view of a window from theinside with a portion brokenaway, showing the invention applied. Fig. 2 is a detail thereof at oneside of the window, partly broken away and in section, showing automaticcatch for holding the guard in raised or set position and looking itafter it is tripped. Fig. 3 is a detail, partly broken away and insection, looking at the side of the window and showing means forautomatically tripping and opcrating the guard and lsig. a is a detailin horizontal sect-ion of a portion of the windowframe with adjacentportions of the inven tion.

In carrying out this invention I provide a window-frame, l, with avertically-slidingmetallic grating, 2, serving as a window-guard andhaving the lower ends of its vertical bars. 3 formed with sharp points4'. The grating 2 may be mounted in. the \\'indo\vframe 1, to slidevertically therein on the inside of window 5 in any suitable manner,and, as here shown, preferably by means of the followingdescribedconstruction: The inner face of the sides of the window-frame 1 isformed with semicircular groove 6, extending from top to bottom of thewindow-frame, and over the inner face of the sides of the window-frameis secured a strip of wood or molding, 7, having a semicircular groove,8, coinciding with and corresponding to the groove 6 and formingtherewith a circular recess or pocket, 9.

lVithin the pockets 9 011 the sides of the window-frame 1 are locatedvertical bars 10, mounted at their ends on the projecting ends 11 of thecross-bars 12 of grating 2 and at their middle on projections 13 on thesides of grating 2. The projecting ends 11 and the projections 13 extendthrough slots 14, running from top to bottom of thei-nside ot' pock- 6oets 9, and serving as guides for the gratingin its vertical movement.

To hold the grating in raised position when it is set for use, a lever,15, is provided, having a cam-shaped head, 16, pivoted in a recess,1'7,in the side of window-frame 1 at some little distance above thewindow-sill, and a curvedarm, 18, projecting out of the recess 17. Thelever 15 has a pin, 19, projecting therefrom adjacent to its pivotalpoint, so that when the arm 18 is elevated nearly to a vertical positionthe pin 19 will have been moved into one of a series of holes, 20, inthe vertical bar 10, and will hold the grating 2 in raised position. Tolook the grating 2 when it is lowered, the cam-shaped head 16 isprovided with teeth 21, which, when the arm 18 is lowered and the pin 19withdrawn from a hole, 20, are moved into engagement with the serratededge 22 on the right-hand bar 10, and are locked therewith, as shown inFig.2.

At a suitable height on the side of windowframe 11 is mounted a bracket,23 in the shape of a ring, and hinged to the outer portion of thebracket 23is a ring, 24, fitting over the ring 23 and having an arm, 25.Upon the ring 24 rests a weighted ball, 26, having secured thereto oneend of a cord, 27, leading to and secured at its other end to the arm 18of lever 15. A cord, 28, is fastened at one end to arm 25 and leadstherefrom across the lower portion of window 5 to the opposite side ofwindow-frame .l,where it is secured to a staple, 29. Beneath thewindow-frame 1 is located a board, 30, serving as a step and 5 mountedon springs 31. The board 30 is hinged to the wall 32 by means of hinges33; and when not in use may be folded up against the wall and secured bya button, 34. A cord, 35, is fastened on the board 30, and leads to rocand is fastened at its other end to arm 25.

In the bottom of each pocket 9 is located a block of rubber, 37, orother form of cushion for the lower end of bars 10 to strike againstwhen the grating 2 falls. To the upper ends of bars is securedone end ofcoiled springs 38, their other ends being secured in the upper ends ofpockets 9. Upon the grating 2 bein raised the spri n 338 will becmupressed, and by their tension act to throw the grating with greatforce downward.

The operatii'm ot' the invention is as follows: The arm 18 of lever israised with one hand sufficiently for the teeth 21 to clear the serratededge 22 on the right-hand bar 1t),the grating 2 is raised with theother, com pressing the springs 39, and the arm 19 is thenfl1li1lll'1E1lS(-}(1 to move the pin 1.) into engagement with one of theholes 20, which thereby holds the grating) in elevated position. Theboard 30 is unfolded to the lmrizontal position, with cord 2-35connected to arm 25, and the weighted ball 26 is placed on. ring 24,resting on ring 23, with its cord 27 cmlnected to arm 18 of lever 15.The cord 28 also extends from arm across the lower portion ol? window 5to staple 29. Upon the window 5 being raised from the outside and aburglar attempting to enter, he will bear against the cord 29 and pullarm 25 down, thereby raising the ring 2'1- and weighted ball. 26, andcausin the latter to roll down on and drop oil of the inclined arm 25,thereby jerking down the arm 19 and releasing pin it) from hole 20,which permits compressed springs 38 to throw down grating 2. The body ofthe burglar proj eetin g through the window will be impaled by the sharppoints -lol? grating 2, and the teeth 2'l,having been moved intoengagement with serrated edge 22 o l l ar 1 (l, the grati n 2 can not beraised, and the burglar will be held :l'ast. As the lever 15 is locatedon the inside of the window, a pal on the outside cannot unt'astcn thegrating from its lowered position. In. case the burglar observes thecord 29, suspects it is connected with an alarm and cuts it, uponswinging his leg over the window-sill and pressing his foot on, the step30, which he will suppose is the floor of the room, the pressure thereondraws on cord. 35, which pulls down arm 25 and causes the weighted ball26 to be dropped, as before, and to release the gratin g, permitting itto be thrown down by springs 38. \Vhen the invention not set for use,the weighted ball may be suspended by its cord 27, as well as the boardfolded up. By this means there will be no liability of accident to achild or other innocent or careless person touching the apparatus it itwere set. \Yhile the grating may drop of its own weight when releasedwithout the use of springs, the latter 1P6 preferably employed.

Having thus described. my invention, what claim as. new, and desire tosecureby Letters Patent, is

1. A window-guard. consistingot a metallic grating havingdownwardly-projecting sharp spikes on its lower edge and mounted toslide vertically inside of a window, a catch for bold ing' the gratingin elevated position and for rocking it when lowered, a weighted. ballmounted on a tilting support and connected to the catch, and meansadjacent to the window for releasing the catch, substantiztlly as setForth.

2. A windmv-guard consistingot a metallic grating havingdownwardly-projeeling sharp spikes on its lower edge and mounted toslidcvertically inside ol a window, springs bearing against the upper end ot.the grating to throw it downward, a catch for holding the grating inelevated position, with the springs compressed, and for locking it whenlmvered, a weighted ball mounted on a tilting support and having a cordconnecting it to the catch, a step mounted on springs beneath thewindow-sill on the inside of the window, a cord leading from the tiltingsupport and held across the lower portion of the window, and a cordleading from the tilting support and connected to the spring-step,substantially as shown and described.

3. In a windmv-guard, a metallic grating having sharp spikes projectingdownward from its lower end and mounted to slide vertically inside of awindow, a catch for holding the grating in elevated position, adetachable weight mounted on a movable support and connected by a cordto the c; itch to release the same, and a cord extended across the lowerportion of the window and connected to the movable support,substantially as shown and described.

it. In a wimlow-guard, a metallic grating having sharp spikes projectingdownward at its lower end and mounted to slide vertically inside of awindow, a catch For holding the grating in elevated position, adetachable weight mounted on a movable support, a st ep mounted onsprings beneath the window-sill, and a cord leading from the step to themovable support, on which the weight rests, substantially as shown anddescribed.

In a window-guard, the combination, with metallic grating 2, havingsharp downwardlyn'oj ectin g points at its lower end and vertical bars10, with serrated edge 22, at its sides and mounted to slide verticallyon win- .low-;l"irame 1 inside of window 2, of springs 38, connectingthe upper end ot' grating 2 with the upper end of frame 1., lever 15,mounted in recess 17 in the wimlow-lframe 1. and having pin 1.) adaptedto engage holes 20 in adjacent bar 10, and a cam-shaped head, 1G, withteeth 21, adapted to engage serrated edge 22 of bar 10, sul stantiallyas shown and described.

6. A window-guard consisting of the metallic grating 2, formed with thesharp points or spikes -.L at-its lower end and mounted to slide inwindow-frame 1 on the inside of window 5, with vertical serrated bars10, having holes 20 and located in pockets 9 in the windowframe,cushionddocks 37, located in the lower end of pockets 9, and coiledsprings 39 in their upper end connected to the windowframe and to thegrating 2, a lever, 15, pivoted in a recess, 17 in the side of windowframe 1 and having an arm, 18, projecting out of recess 17, and acam-shaped head, 16, with teeth 21 adapted to engage serrated bar 10 andloek'grating 2, and a pin, 19, adapted to engage holes 20, a bracket,23, 011 the side of Window-frame 1, a tilting bracket, 24, hinged tobracket 23 and having an arm, 25, a Weighted ball, 26, adapted to reston brackets 24 and 23 and having a cord, 27, leading to arm 18 of lever15, a step, 30, mounted on springs 31, a cord, 35, leading from step 30to arm 25, and a e0rd,28, leading from staple 29 across the lowerportion of Window 5 and attached to arm 25, substantially as shown anddescribed.

JOHN B. HARRIS.

lVitnesses:

EDWIN WILSON, W. C. OLIVER.

